Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5231472 | Color matching and characterization of surface coatings | Robert T. Marcus | 1993-07-27 |
| 4339365 | Coating compositions containing pigment dispersants | David Z. Becher, Roger M. Christenson, Richard L. Coalson, Karl F. Schimmel | 1982-07-13 |
| 4303764 | Pigment dispersants for coating compositions | David Z. Becher, Roger M. Christenson, Richard L. Coalson, Karl F. Schimmel | 1981-12-01 |
| 4302560 | Pigment dispersants for coating compositions | David Z. Becher, Roger M. Christenson, Richard L. Coalson, Karl F. Schimmel | 1981-11-24 |
| 4302561 | Pigment dispersants for coating compositions | David Z. Becher, Roger M. Christenson, Richard L. Coalson, Karl F. Schimmel | 1981-11-24 |
| 4302562 | Pigment dispersants for coating compositions | David Z. Becher, Roger M. Christenson, Richard L. Coalson, Karl F. Schimmel | 1981-11-24 |
| 4299743 | Sulfonate-containing polymer | Karl F. Schimmel | 1981-11-10 |